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san4es73 [151]
3 years ago
9

Helpppp plsss......!!!!!!!!

Mathematics
1 answer:
ioda3 years ago
8 0

Answer:

Step-by-step explanation:

Mower A: 3.25 / 0.3 = 10.83

Mower B: 3.75 / 0.15 = 25

Mower C: 4.25 / 0.24 = 17.71

Mower D: 5.50 / 0.18 = 30.50

Answer: D :)

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What's the inverse of f(x)=3x^2+6?
djyliett [7]
Switch where the x and y are, then solve for y. f(x) = y.

x = 3y^2 + 6

x-6 = 3y^2

(x-6)/3 = y^2

f^-1(x) = y = sqrt((x-6)/3)
5 0
3 years ago
A tailor earns (12y² + y – 35) pesos for working (3y – 5) hours. How much does he earn per hour?
Natalka [10]

Answer:

4y+7

Step-by-step explanation:

(12y² + y – 35)/(3y – 5)

=(3y-5)(4y+7)/(3y-5) (factorization)

=4y + 7

Hope this helped!

4 0
3 years ago
Value of the derivative of g(x)=8-10Cosx at 'x=0' is?
VLD [36.1K]

Answer:

g'(0) = 0

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Algebra I</u>

  • Function Notation

<u>Pre-Calculus</u>

  • Unit Circle

<u>Calculus</u>

  • Derivatives
  • Derivative Notation
  • The derivative of a constant is equal to 0
  • Derivative Property: \frac{d}{dx} [cf(x)] = c \cdot f'(x)
  • Trig Derivative: \frac{d}{dx} [cos(x)] = -sin(x)

Step-by-step explanation:

<u>Step 1: Define</u>

g(x) = 8 - 10cos(x)

x = 0

<u>Step 2: Differentiate</u>

  1. Differentiate [Trig]:                    g'(x) = 0 - 10[-sin(x)]
  2. Simplify Derivative:                   g'(x) = 10sin(x)

<u>Step 3: Evaluate</u>

  1. Substitute in <em>x</em>:                    g'(0) = 10sin(0)
  2. Evaluate Trig:                      g'(0) = 10(0)
  3. Multiply:                               g'(0) = 0
3 0
3 years ago
Please help me Estimate 258+565 I been needing help since yesterday
wariber [46]
It could be 820 thats rounded to the nearest tenth
if its supposedto be rounded to the nearest hundred its 800

3 0
3 years ago
What are the solutions of the equation 2x2 = 2? Use a graph of the related function. A. There are two solutions: -1 and 1. B. Th
Lemur [1.5K]
Hello :
2x² = 2
x²=1
x²-1=0
(x-1)(x+1) = 0
x-1=0 or x+1=0
x=1 or x= -1...(answer : <span>B. There are two solutions: -1 and 1 )</span>
7 0
3 years ago
Read 2 more answers
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